VEHICLE LIGHTING DEVICE WITH HOUSING, WHOSE WALL IS EQUIPPED WITH TAB(S) FOR GUIDING WIRING HARNESS(ES)

An optical block (BO) is intended to equip a vehicle and comprises a housing (BB) comprising a wall (PB) having an external face to which a control unit (EC) is secured, said control unit controlling at least one photometric function and provided with a hole (TT) allowing the passage of at least one electrical conductor (FE1) interconnecting the control unit (EC) to at least one element participating in the photometric function. This wall (PB) comprises at least one guide tab (PG1) partially obstructing its hole (TT) in a predefined zone and having a shape defining a mandatory passage path (LP1) for at least one electrical conductor (FE1) and constraining the path followed by the latter (FE1) inside the housing (BB).